10 — 



stated tliat he found the larva in the piiie buds in 

 April. Eckstein adds the information that tlie 

 female o\'iposits on the buds in May, and that the 

 larva hibernates. NuESSLlN, on the other hand, 

 iaforms uS; quoting DiSQUE, that the larva first 

 mines a pine ueedle, where it liibernates, and attacks 

 the buds in the follo'wang s]>ring. My own Observation» 

 entirely confirm NUESSLINS Statements. 



At the end of June j''oung larvae were found mining 

 in the distal part of ueedles (Fig. 3), and such needles 

 occupied by larva were found tlu'oughout the rest of 

 the year, the last time on the 12 th of December at 

 Nynäs. 



In tlie following spring tlie larvae were still found 

 in the needles as late as the 20 th of April, but on the 

 24 th of the April those kept in captivity left the 

 needles and being then transferred tosmailbranches, in 

 a few minutes they started spinningthe ehareocteristic 

 Silken tubes (Fig. 4), which are always to be found at 



Schrifttum. 



Baee, W., (I) Beobachtungen über Lyda hypo- 

 trophica Htg., Nematus abietinus Clir. und Grapho- 

 litka tedella Cl. — Tharander forstl. Jahrbuch, 

 Bd. 53. Dresden 1903. 



Baer, W., (II) Ein Fraß von Steganoptycha nanana 

 Tr. nebst Bemerkungen über ähnlich lebende 

 Kleinfalter. Naturwiss. Zeitschr. für Land- und 

 Forstwirtschaft. Jahrg. 4. Stuttgart 1906. 



Baek, W., (III) Beobachtungen und Studien über 

 Dioryctria splendidella H. S. und abieteWa S. V. — 

 Tharander forstl. Jahrbuch Bd. 56. Dresden 1906. 



Eckstein, K., (I) Die Kiefer und ihre tierischen 

 Schädlinge Bd. I. Die Nadeln. Berlin 1893. 



Eckstein, K., (II) Forstliche Zoologie. Berlin 1897. 



JUDElCH-NiTSCHE., Lehrbuch der Mitteleurop. 

 Forstinsektenkunde. Wien 1895. 



Ntjesslin, 0., Leitfaden der Forstinsektenkunde. 

 Berlin 1913, IL Aufl. 



Fig. 5. a Prothorakalschild, 50/1; b Analschild, 50/1. 



the base of the shoots attacked by the larva of the 

 Heringia dodecella, and entered the shoots. 



The needles mined bythis species are verycharac- 

 teristic and easily distinguished from those mined by 

 Cedestis, Discedestis and Ocnerostoma. No eggshell 

 is found on them, and it is always the distal half of 

 the needle that is mined (Fig. 1), for about 7 — 15 mm, 

 the entrance being as a rule at the proximal part of 

 the mine. The larva seems to eject the main part 

 of its excrement through a special hole and, further- 

 more, the gallery is clothed Avith silk, a feature never 

 occurring in the mines of the species mentioned above. 



The larva prepares its hibernating quarters by 

 clothing the walls of the mine with silk and closing 

 the apertures. 



A needle used for hibernating (Fig. I) is easily 

 recognized by the presence of two apertures, one of 

 which ^u) is open, wliile the other (i) is closed by 

 silk; the open one is generally placed lower down, 

 and between the two there is often a portion (v) 

 which seems to have been excavated in the spring. 

 Geographical distribution. Wallengren only re- 

 cords the species from Scania, Smäland and Got- 

 land, but it is doubtless widely distributed in Sweden. 

 It has been found by the author in the vicinity of 

 Stockholm, in the Stockholm archipelago, and at 

 Leksand in Dalecarlia. At Sandhamn, in the Stock- 

 holm archipelago, on stunted trees sometimes 50 % 

 of the buds were destroyed. 



Details of the larva are given in figs. 5 and 6, the 

 pupa in fig. 7. 



I a 



Fig. 6. 



Pig. 6. a Kopf, von vorne (Stellung der Haare durch 

 Punkte angedeutet) 28/1; b Antenne, von der Ober- 

 seite, 412/1; c Oberlippe, von der Oberseite, 412/1; 

 d Oberlippe, von der Unterseite, 206/1; e Mandibel, 

 von der Oberseite (Behaarung nicht eingezeichnet) 

 412/1; f Unterlippe, von der Unterseite, sp Spinn- 

 röhre 206/1. 



